The scarred Prince

Ryko Echizen is about to blow your mind, he is Ryoma's younger twin by only 30 seconds. Ryko came back from America along with his brother and both of them decided to go to different schools.
Ryoma went to Seigaku while Ryko went to Rikkai, the brothers love nothing more than tennis but a accident several years back scarred one of the twins and made it impossible for him to use his left hand to play tennis unless he can find a doctor who can fix his hand, but they lost hope when they went to every sports doctor who said it was impossible.